Labels in not preferred language are ignored

[rogargon]

Currently, client-side, just the preferred language labels (fixed to en) or labels without language are displayed.

This might cause properties to appear empty if they just contain labels in other languages (e.g. scientific name in la).

Consider adding a filter for preferred language that users can change and default to any language if no value available.

[rogargon]

Fix issue when all values for languages other than the preferred, then return all, 1cf187e

[rogargon]

Pending way for user to select preferred language.
Create select in navbar with any for no language preference or choices from those languages used in the current dataset.